Could fluoride stunt growth?

Note:  I am still working on a new method to increase height.

Sometimes things that are good for bone development are bad for longitudinal bone growth.  Fluoride could be such a case.  We can’t say definitively that fluoride stunts growth but it’s definitely something to watch out for.  Apparently, there is some concern that babies can have too much fluoride which makes sense given their small body size.

It should be noted also that sometimes things that inhibit longitudinal bone growth in one bone can stimulate in another.  This can occur in the spine for example.

Fluoride Inhibits Longitudinal Bone Growth by Acting Directly at the Growth Plate in Cultured Neonatal Rat Metatarsal Bones

Excessive intake of fluoride inhibits bone growth in both humans and animals. It is unknown whether fluoride acts directly on the growth plate to inhibit longitudinal bone growth, and its mechanism of action has not been elucidated. In this study, we used an organ culture system and SW1353 cells to evaluate the effects of fluoride on endochondral ossification. Neonatal rat metatarsal bones were dissected and cultured with or without fluoride for 7 days. The total length and width of the metatarsal rudiments and the length of the calcification zone were measured. Chondrocyte proliferation, differentiation, and apoptosis were analyzed by immunohistochemistry and TUNEL assay in sectioned bones. The apoptosis was detected by flow cytometry, and the expression of apoptosis-related proteins Bax, Bcl-2, and Caspase-3 were detected by western blotting in SW1353 cells. Linear measurements demonstrated that fluoride induced a biphasic effect on longitudinal bone growth in organ culture, with a significant growth inhibition at a high concentration (10−4 M) and a stimulatory action at low concentration (10−6 M) of fluoride{that’s a pretty significant difference between high and low concentration so you can pretty safely take fluoride}. Histomorphometrical analysis of growth plate from fluoride-exposed metatarsal rudiments showed a significant reduction in the height of the proliferative and hypertrophic chondrocyte zones. Analysis of the Col2α1 and Col10α1 expression by immunohistochemistry revealed fluoride-suppressed metatarsal growth plate chondrocyte proliferation and differentiation. In addition, fluoride increased the number of apoptotic chondrocytes in the metatarsal growth plate. Western blotting showed an up-regulated expression of Caspase-3 and Bax and down-regulated expression of anti-apoptotic protein Bcl-2 after treatment with 5 × 10−4 M fluoride in SW1353 cells. Our findings indicated that fluoride inhibited longitudinal bone growth by acting directly at the growth plate in cultured neonatal rat metatarsal bones. Such growth inhibition was mediated by suppressing proliferation and differentiation, increasing apoptosis of resting chondrocytes and causing premature cell senescence in the growth plate.”

If you read the paper it says that high doses of fluoride can enlarge the growth plate which indicates that an enlarged growth plate is not always beneficial for longitudinal bone growth.

In the paper it says 10 -6 M of fluoride increased Longitudinal bone growth but it was not statistically significant but any longitudinal bone growth is good.

The question is can fluoride in toothpaste, drinking water, and other dental sources reach high concentration and stunt growth?

Chondroprotection as a mechanism for height growth

This is a Hiroki Yokota study who along with Ping Zhang is one of the prime developers of lateral loading modalities.

Generation of the Chondroprotective Proteomes by Activating PI3K and TNFα Signaling

“Chondrosarcoma and inflammatory arthritis are two joint-damaging diseases. Here, we examined whether a counterintuitive approach of activating tumorigenic and inflammatory signaling may generate joint-protective proteomes in mesenchymal stem cells and chondrocytes for the treatment of chondrosarcoma and inflammatory arthritis{we already kind of know that low levels of inflammatory signaling is beneficial, it’s too much that’s the problem}. While activating PI3K signaling and the administration of TNFα to chondrosarcoma cells and chondrocytes promoted tumor progression and inflammatory responses, those cells paradoxically generated a chondroprotective conditioned medium. Notably, the chondroprotective conditioned medium was enriched with Hsp90ab1 that interacted with GAPDH. Extracellular GAPDH interacted with L1CAM, an oncogenic transmembrane protein, and inhibited tumorigenic behaviors, whereas intracellular GAPDH downregulated p38 in chondrocytes and exerted anti-inflammatory effects. The result supports the unconventional approach of generating chondroprotective proteomes.”

“We employed mesenchymal stem cells and chondrocytes to generate chondroprotective proteomes{proteomes are essentially a collection of proteins} by activating PI3K signaling and the administration of TNFα.”

“In response to chemotherapeutic agents, the reverse behavior of resilient cancer cells is frequently observed. While their tumorigenic action may initially be suppressed, cells tend to develop drug resistance and gradually strengthen their progression”

“Chronic inflammation is reported to facilitate tumor progression, while the induction of inflammation may contribute to suppressing tumorigenesis by stimulating immune responses”

“Besides chondrocyte-derived CM, MSC-derived CM, as well as MH7a synovial cell-derived CM, were converted to tumor suppressive by the treatment with YS49, an activator of PI3K signaling. Their application reduced the level of TNFα and MMP13 in C28/I2 chondrocytes”

“Hsp90ab1, a heat shock protein acting as a molecular chaperon, showed the most pronounced anti-inflammatory effect in C28 chondrocytes by downregulating TNFα and MMP13”

” the chondroprotective proteome can be generated from MSCs and chondrocytes by activating PI3K signaling with YS49 and treating them with TNFα. When switched on, both PI3K and TNFα signalings acted tumorigenic in CS cells and inflammatory in chondrocytes. However, YS49 and TNFα converted skeletal host cells such as MSCs and chondrocytes into iTSCs and iISCs, and they generated tumor-suppressive and inflammation-suppressive CMs. We observed that YS49 and TNFα-treated CMs inhibited the proliferation, migration, and invasion of CS cells. Those CMs downregulated Runx2 and MMP9 in CS cells, as well as NFATc1 and cathepsin K in osteoclasts, whereas they decreased TNFα and MMP13 in chondrocytes”

Ginza Kojima seems to have a new height increase device

Natural Height Growth has written about Ginza Kojima’s devices before.  The device appeared to be some kind of traction device with a rotational force applied.  The centripetal force could potentially stretch the body.  But all these forces ultimately have to lead to some kind of plastic deformation(permanent stretch of the bone or cartilage).  I speculated previously that the green light may be some kind of radiation that weakens the bone which allows it to be permanently stretched.

Here’s Ginza Kojima’s new website: http://www.shincho-nobashi.jp/

It looks like it applies a rotational/twisting force on the leg combined with some kind of pressure.

It looks like it’s mainly for small amounts of height as taken by this excerpt below.

In the case of the whole body course (guarantee course), it is 500,000 yen up to 1 cm, 1,300,000 yen up to 2 cm, and 2,300,000 yen up to 3 cm. (Excluding tax ※ Consumption tax will apply separately)

In the case of the knee and foot bone course (guarantee course), it is 1 million yen to 1 cm, 2 million yen to 2 cm and 3 million yen to 3 cm. (Excluding tax ※ Consumption tax will apply separately)

Please inquire for detailed charges for 3 cm and beyond.”

One limb length testimonial though advertised in the site is for 5 cm which you cannot realistically achieve without actual major bone growth.

The effects of the treatment are very individual differences and it is not known how long it will take without actually starting the treatment.

In our hospital, we guide you to receive the treatment once a week 24 times (about 6 months) as a rough guide. In addition, we offer a course that you can receive intensive treatment for a week as a short-term intensive course, so please consult with distant people.”

<-so looks like once a week for 6 months.

The current treatment schedule at our hospital is as follows.

  • 1st time 10:00 to 12:00 (30 minutes set time)
  • Second time 12:30-14:00
  • Third time 14:30-16:00

As mentioned above, an average of 3 sets is given daily. The second and subsequent treatments are basically the same, but we will make adjustments to suit your convenience as much as possible, so please contact us.”<-and 3 sessions of 30 minutes.

This machine advertised elsewhere on the site looks like a traction machine

Gina kojima explains the science behind his thinking here:

“First of all, I thought it would be good to pull. When I grabbed the bones of the foot from both sides and pulled it with a slight force according to the tug of war and the principle of childhood, I thought that it would be fine because the blood vessels became thinner and blood flow would improve. The heart is pumping 6 liters of blood a minute, so the blood vessels become thin if you pull a round blood vessel, and it is the theory that so much pressure will be applied to improve blood flow. It has been 40 years since I started making machines. To be honest, it will be dozens already. Anyway, it is said that if you look at it, why do you spend so much money to make stupid tools, and it keeps making it anyway.”

So this quote makes it seem like a traction device but a lot of traction devices don’t necessarily pull the bone to induce plastic deformation.

As far as traction devices go, you have to either induce plastic deformation in the bone or you have to stimulate the body to grow.

I think the whole body course is the traction machine and the knee course is the elevated height speed machine 2 device.

I think elevated height speed machine 2 device may just be another traction device but specifically for the knee.  Any japenese translators?

Articular cartilage versus growth plate cartilage

I am still working on finding a method to grow taller.  A lot of it is self testing as not a lot of the published papers published lately show promise of non surgical longitudinal bone growth that I could see.

Mechanisms of synovial joint and articular cartilage development

“Articular cartilage is formed at the end of epiphyses in the synovial joint cavity and permanently contributes to the smooth movement of synovial joints. Most skeletal elements develop from transient cartilage by a biological process known as endochondral ossification. Accumulating evidence indicates that articular and growth plate cartilage are derived from different cell sources and that different molecules and signaling pathways regulate these two kinds of cartilage{Could we inject these cell sources into the articular cartilage?  Could we mimic the molecules and signaling pathways with various stimuli?}. As the first sign of joint development, the interzone emerges at the presumptive joint site within a pre-cartilage tissue. After that, joint cavitation occurs in the center of the interzone, and the cells in the interzone and its surroundings gradually form articular cartilage and the synovial joint. During joint development, the interzone cells continuously migrate out to the epiphyseal cartilage and the surrounding cells influx into the joint region. These complicated phenomena are regulated by various molecules and signaling pathways, including GDF5, Wnt, IHH, PTHrP, BMP, TGF-β, and FGF. .”

“Matured articular cartilage is also referred to as hyaline cartilage because of its translucent appearance that reflects its unique constituents, such as type II collagen, glycosaminoglycans (GAGs), and low cellularity. In addition, articular cartilage does not have blood vessels, lymphatic vessels, or nerves. Articular chondrocytes produce extracellular matrices and maintain their environment with very little or no cell turnover{we want cell turnover, HGH increases cell turnover and HGH can make you very tall in certain circumstances}”

” most parts of articular cartilage derive from different lineages from the growth plate cartilage. The first signs of joint development are presented by the appearance of condensed flattened cells at the presumptive joint site within a pre-cartilage tissue known as the interzone, the origin of the joint. Removal of the interzone from a chick embryo leads to an uninterrupted long bone lacking joints, indicating that the interzone provides segmentation of skeletal elements in limbs. The interzone arises from mesenchymal/pre-cartilaginous tissue in which the cells initially express chondrocyte marker genes such as type II collagen, aggrecan, and matrillin-1 ”

“Instead of the decreased expression of these chondrogenic markers, the interzone cells acquire the expression of growth differentiation factor 5 (Gdf5), formerly known as bone morphogenetic protein 14 (BMP14), or cartilage derived morphogenetic protein 1 (CDMP1). Gdf5 is a representative marker for the interzone during early joint development. In addition to Gdf5, Wnt4, Wnt9a (formerly known as Wnt14), Wnt16, Erg, doublecortin, and Gli are also expressed in the interzone”

“Gdf5-expressing cell lineage gives rise to all mature joint structures including articular cartilage, meniscus, ligaments, and synovium ”

” joint components are formed by the integration of peripheral cells in joint development. Epiphyseal chondrocytes migrate into the interzone at early stages, and the external regions of joints such as the synovium/joint capsule and outer parts of the meniscus are mainly composed of lately integrated cells. Thus, the fate of embryonic interzone cells, the surrounding cells, and their progeny cells may be determined by their spatiotemporally environment. “<-so growth plate cells become integrated into the articular cartilage interzone cells but these cells are affected by the articular cartilage cells and microenvironment so that the articular cartilage overall environment is unaltered.  Maybe we can do the reverse and make the articular cartilage more growth plate like…

“IHH is produced from pre-hypertrophic chondrocytes and up-regulates PTHrP expression in peri-articular chondrocytes. PTHrP inhibits the differentiation of proliferating chondrocytes into pre-hypertrophic chondrocytes. This feedback loop determines the length of long bones. Before the feedback loop, pre-hypertrophic chondrocytes around the center of anlagen are associated with interzone generation through the secretion of IHH. The loss of IHH causes not only dwarfism but also joint fusion in distal limb joints ”

“excessive IHH signaling activity in the interzone progeny induces ectopic cartilage formation in the knee ”

“Unlike in endochondral ossification, IHH and PTHrP seem to be independent in interzone generation and joint development. The genetic alteration of PTHrP causes the impairment of endochondral ossification, but no severe changes in joints. Even after IHH signaling becomes silent, PTHrP-expressing cells exist in articular cartilage over a lifetime. Recombinant human PTH (1–34) suppresses osteoarthritis development, and PTH/PTHrP signaling induces lubricin”<-Can we use this fact to become taller?

Interesting study that explains why there are secondary ossification centers

Those who say that weightlifting stunts growth will have a field day with this one.  Small animals were used and if the loads mentioned in the study caused as much apoptosis then growth would be severly stunted by weight loading.  But if it indicated some cellular regeneration in regards to unplanned apoptosis due to mechanical that would be an amazing breakthrough.  We could trick the cells into thinking there was more apoptosis than there was and that would lead to overgrowth.

Secondary ossification centers evolved to make endochondral bone growth possible under the weight-bearing demands of a terrestrial environment

“The growth of long bones occurs in narrow discs of cartilage, called growth plates that provide a continuous supply of chondrocytes subsequently replaced by newly formed bone tissue. These growth plates are sandwiched between the bone shaft and a more distal bone structure called the secondary ossification center (SOC). We have recently shown that the SOC provides a stem cell niche that facilitates renewal of chondro-progenitrors and bone elongation. However, a number of vertebrate taxa, do not have SOCs, which poses intriguing questions about the evolution and primary function of this structure. Evolutionary analysis revealed that SOCs first appeared in amniotes[essentially egg laying reptiles, birds, and mammals] and we hypothesized that this might have been required to meet the novel mechanical demands placed on bones growing under weight-bearing conditions. Comparison of the limbs of mammals subjected to greater or lesser mechanical demands revealed that the presence of a SOC is associated with the extent of these demands. Mathematical modelling with experimental validation showed that the SOC reduces shear and normal stresses within the growth plate; while relevant biological tests revealed that the SOC allows growth plate chondrocytes to withstand a six-fold higher load before undergoing apoptosis{this provides evidence that too high a load could stunt growth}. Hypertrophic chondrocytes, the cells primarily responsible for bone elongation, were the most sensitive to loading, probably due to their low Young’s modulus (as determined by atomic force microscopy). Our present findings indicate that the primary function of the evolutionary delineation of epiphyseal cartilage into spatially separated growth plates was to protect hypertrophic chondrocytes from the pronounced mechanical stress associated with weight-bearing in a terrestrial environment.”

“hypertrophic chondrocytes undergo apoptosis or trans-differentiation, leaving their calcified extracellular matrix as a scaffold on which invading blood vessels and osteoblasts form new bone tissue.”<-interesting that the acknowledge the transdifferentiation theory.

“commonly to study bone growth (i.e., mice, rats and rabbits), the growth plate is separated from the articular cartilage by a bony fragment, the secondary ossification center (SOC). This skeletal element, formed during early postnatal development, splits the initially contiguous cartilaginous element into two independent structures, the growth plate and articular cartilage ”

“Growth plate chondrocytes appeared to be highly sensitive to load, with 40% dying upon application of a 1N load (as revealed by propidium iodide (PI) staining). At the same time, the SOC clearly protected these cells, allowing them to withstand a load an order of magnitude higher ”  An order of magnitude would be 10N

“directional compressive stress appears to be harmful to chondrocytes, especially hypertrophic chondrocytes”

Study finds chocolate increases longitudinal bone growth

Update:  I’m still working on a new non-LSJL method.

I don’t believe that chocolate can make you wildly taller but it tastes good.  I also think the optimal diet for longitudinal bone growth varies on developmental stage.

Chocolate and Chocolate Constituents Influence Bone Health and Osteoporosis Risk

“Bone loss resulting in increased risk of osteoporosis is a major health issue worldwide. Chocolate is a rich source of antioxidant/anti-inflammatory flavonoids as well as dietary minerals with the potential to benefit bone health. However, other chocolate constituents such as cocoa butter, sugar and methylxanthines may be detrimental to bone. Human studies investigating the role of chocolate consumption on serum bone markers and bone mineral density (BMD) have been inconsistent. A contributing factor is likely the different composition and thereby, nutrient and bioactive content amongst chocolate types. White, followed by milk chocolate, are high in sugar and low in flavonoids and most minerals. Dark chocolate (45-85% cocoa solids) is high in flavonoids, most minerals, and low in sugar with ≥70% cocoa solids resulting in higher fat and methylxanthine content. The aim of this review was to examine the relationship between consuming chocolate, its flavonoid content, and other chocolate constituents on bone health and osteoporosis risk. Studies showed postmenopausal women had no bone effects at moderate chocolate intakes; whereas, adolescents consuming chocolate had greater longitudinal bone growth{whether this fact can be used for any purpose though….}. Based on flavonoid and mineral content, unsweetened cocoa powder appeared to be the best option followed by dark chocolate with higher cocoa content in terms of supporting and preserving bone health. Determining dietary recommendations for chocolate consumption regarding bone health is important due to the growing popularity of chocolate, particularly dark chocolate, and an expected increase in consumption due to suggestions of health benefits against various degenerative diseases.”

“Diets that promote bone health have mainly focused on increasing Ca and
vitamin D consumption, but there is growing interest in phytochemicals[chemicals produced by plants]”

“Dietary polyphenols consist of a large group of plant-derived secondary metabolites
divided into four different classes, one of which is the flavonoids (diphenylpropanes C6-C3-C6).
Flavonoids contain several classes of bioactive compounds.  There is evidence
that intake of specific flavonoids may promote bone health including: soybean isoflavones (e.g. genistein{genistein may increase HSP90 levels and HSP90 definitely affects the growth plate but in some instances it stimulated growth and some incidences suppressed it} and daidzein), flavonols (e.g. aglycone quercetin{quercetin definitely impacts factors involved in longitudinal bone growth but the evidence is not that strong}) found in plums, and flavonones (e.g. hesperidin) found in citrus pulp and juice.  Another food source noted for its flavonoid content is chocolate.  Cocoa, a major constituent in chocolate, has the highest flavanol content of all foods on a per-weight basis and contributes to greater total dietary intake of flavonoids than tea, fruits, and vegetables ”

“Both animal models and human clinical trials have reported an inverse association
between reactive oxygen species (ROS) and bone health.  ROS can affect bone cells in
various ways including stimulation of osteoblast apoptosis and senescence and by upregulation of receptor activator of nuclear factor kappa-B ligand (RANKL) to activate osteoclast differentiation and bone resorption”<-I think though there is a role for ROS.  It’s just too many is a bad thing.  And bone can be inhibitory towards longitudinal bone growth but it’s degradation of bone(bone turnover) not degradation of bone building cells that would be beneficial.

“catechins preserved bone-forming osteoblasts by exerting anti-inflammatory actions”

” In a randomized, double-blinded placebo-controlled study, pre-pubertal (n=149, age 6.6-9.4 years) girls consumed two Ca-supplemented food products daily to achieve a Ca dose of 850 mg/d.  Results showed consuming Ca-supplemented chocolate bars, cakes or cocoa beverages for 48 weeks significantly increased height and bone mass acquisition in the radius and femur

“Feeding murine dams chow diet supplemented with 400 mg unsweetened chocolate during pregnancy and lactation resulted in progeny with significantly shortened forefeet and hindlimbs.  Vascular endothelial growth factor (VEGF), which plays a role in ontogenesis and longitudinal bone growth related to angiogenesis in the epiphyseal growth plate, was significantly reduced in the femora of immature (age 4-weeks old) mice pups exposed perinatally to chocolate.  A follow-up study investigating the relationship of the chocolate constituent, catechins on angiogenesis and bone mineralization in the progeny of murine dams fed chocolate showed a negative correlation between embryo tissue epigallocatechin concentration and mean number of newly-formed blood vessels.  Crystallinity of compact bone of diaphyses was 17% greater and femoral epiphyseal cancellous bone was 30% greater in pups age 4-weeks old exposed perinatally to chocolate compared to pups from control dams.  The authors suggested anti-angiogenic activity of chocolate catechins disturbed the processes of bone elongation and mineralization “<-so chocolate may be better at different stages.

Here’s the study on chocolate(along with other calcium enriched foods) consumption in girls:

Calciumenriched foods and bone mass growth in prepubertal girls: a randomized, double-blind, placebo-controlled trial.

“High calcium intake during childhood has been suggested to increase bone mass accrual, potentially resulting in a greater peak bone mass. Whether the effects of calcium supplementation on bone mass accrual vary from one skeletal region to another, and to what extent the level of spontaneous calcium intake may affect the magnitude of the response has, however, not yet been clearly established. In a double-blind, placebocontrolled study, 149 healthy prepubertal girls aged 7.9+/-0.1 yr (mean+/-SEM) were either allocated two food products containing 850 mg of calcium (Ca-suppl.) or not (placebo) on a daily basis for 1 yr. Areal bone mineral density (BMD), bone mineral content (BMC), and bone size were determined at six sites by dual-energy x-ray absorptiometry. The difference in BMD gain between calcium-supplemented (Ca-suppl.) and placebo was greater at radial (metaphysis and diaphysis) and femoral (neck, trochanter, and diaphyses) sites (7-12 mg/cm2 per yr) than in the lumbar spine (2 mg/cm2 per yr). The difference in BMD gains between Ca-suppl. and placebo was greatest in girls with a spontaneous calcium intake below the median of 880 mg/d. The increase in mean BMD of the 6 sites in the low-calcium consumers was accompanied by increased gains in mean BMC, bone size, and statural height. These results suggest a possible positive effect of calcium supplementation on skeletal growth at that age. In conclusion, calciumenriched foods significantly increased bone mass accrual in prepubertal girls, with a preferential effect in the appendicular skeleton, and greater benefit at lower spontaneous calcium intake.”

“Both statural height and body weight, however, were significantly greater among the spontaneously high- versus low-calcium consumers (129.160.7 vs. 126.560.7 cm, P , 0.001; 27.560.5 vs. 25.760.5 kg, P , 0.001, respectively). ”

There were several non calcium enriched foods in the study and not just chocolate so it’s likely the calcium and not the chocolate making the girls taller.