PubMed Health⌕ Search

Biomedical subjects

J Bossy

Publications and source records attributed to J Bossy.

At least 37 records · Page 2Linked to original sources
PubMed1984

Morphological data concerning the acupuncture points and channel network.

Through its traditional rules, the practice of acupuncture requires knowledge of the channel networks and point locations. For nearly three centuries, morphological research did not show any evidence on peripheral morphological support of the channels. Their courses appear as referred sensations, and the persistence of propogated sensations along the channels in amputees and their cessation after total section of the spinal cord implicates a neuraxial participation. The spatial sequence of the segmental centers seems to be the indispensable primary structure. Through the various centers having a topical organization, the somesthetic areas appear as the necessary structural support of the propogated sensation along the channel. Acupuncture points are less discussed as a basis of acupuncture in the West, but they do have equivalences in all medical systems. Nervous structures are necessary for acupuncture to work, and complete denervation totally suppresses the effect of the points. There is not only one type of acupuncture point but many of them, and the concomitant stimulation of multiple and clearly defined structures is necessary to obtain the acupuncture sensation, De Qi. Thus, the effect seems strictly correlated with convergence of nerve impulses on the primary centers. Lastly, accurate anatomical knowledge of the point and its correct puncture (location, direction, depth) are indispensable to get satisfactory therapeutical effects and to avoid iatrogenic incidents.

Acupuncture Therapy↗
PubMed1983

Development of hypertension in spontaneously hypertensive rats fed L-tyrosine-supplemented diets.

The blood pressure of spontaneously hypertensive rats (SHR) was measured by tail-plethysmography. Feeding SHR a diet supplemented with 0.6 g% L-tyrosine, for 15 weeks after weaning, resulted in a slower increase of blood pressure than in rats fed the control diet (no tyrosine added). The blood pressure stabilized, after about 8 weeks, at values lower by about 10 mm Hg than in the control SHR group. Diets with a higher content of free L-tyrosine (1.2 or 2.4 g%) produced no greater hypotensive effects, despite the fact that the plasma level of the amino acid, at the time of blood pressure measurements, was related to the tyrosine content of the diet. In addition, providing 2.4 g% free L-tyrosine to the diet of SHR with established hypertension, produced within a few days a decrease of blood pressure similar to the one recorded in rats fed the tyrosine-supplemented diet during the whole period of development of hypertension. A maximal effect of L-tyrosine, in decreasing the blood pressure of SHR, is thus obtained at relatively low concentrations of the amino acid in the diet, and after a short period of consumption. However, this effect is rather small, and rapidly reversed upon removing free L-tyrosine from the diet.

Animals↗
PubMed1983

[Vascularization of the iris].

A part of the LEBER's scheme concerning vascularization of the iris may be discussed from iridian angiograms. Serial frontal sections permit to precise the following data: The great arterial circle, which is in a tight relation with the ciliary muscle gives rise to one artery by ciliary process, and veins are located more posteriorly. The iridian zone proper has one radiate artery for 3 or 4 veins. The small arterial circle located in the collarette zone is variable, most often discontinuous. The iridian sphincter zone has a high density vascularization, constituted of antero-posterior vessels, realizing a pre-sphincterian and retro-sphincterian networks. The marginal circle always exists; it seems mostly of an arteriovenous type. The density of this vascularization exceeds the nutritional needs of this organ, and suggests an other functional role.

Adult↗
PubMed1982

[Atlas of the stages of development of the nervous system in the intact human embryo].

Many features of the developing nervous system are visible in the intact human embryo, and a photographic atlas from 3-7 postovulatory weeks (stages 10-19) is provided. A number of features, such as the cerebellar plate, the cerebral vesicles, and the epiphysis cerebri, can be detected on external views at as early a stage as they have previously been recorded after microscopical examination. After 7 weeks it becomes increasingly difficult to identify features of the brain from the surface.

Anatomy↗
PubMed1982

[Sequence of development of cutaneous innervation of the limbs in the human embryo].

From stage 13 onwards, exploratory buds with a characteristic cellular cap may be observed in the limb buds. When the fibres become anchored to the corium, organogenesis is completed, but not maturation. The sequence of the cutaneous innervation of the limbs follows the proximo-distal development of the external forms, with a delay of 1 to 2 stages. The innervation of the upper limb segments usually precede that of the lower limb segments by one stage, moreover the innervation of the dorsal skin occurs slightly later than that of the ventral aspect of the limb. At stage 23, the exploratory buds have finished their progression in the fingers, and nearly so in the toes, but the anchored fibres do not pass the ventral aspect of the distal interphalangeal joints of the fingers, and have barely passed the proximal interphalangeal joints of the toes.

Extremities↗
PubMed1981

[Introduction to the study of embryonic stages in man].

The internationally accepted Carnegie system of 23 developmental stages for the embryonic period proper (the first 8 post-ovulatory weeks) is outlined. At the end of this period the human embryo measures about 30 mm in C.-R. length. Some common misusages are noted, e.g., arabic numerals should be used for the states and the term "horizon" is obsolete; embryonic length is not a stage; STREETER's ages were based on the macaque and do not apply to the human. The introduction includes a discussion of the Carnegie Embryological Collection, the embryonic period, developmental stages, and finally a guide to embryonic staging in the human. An atlas of photographs of external views of embryos at the various Carnegie states is provided. Stages 1 to 8 (the presomite period, up to about 18 days) are described briefly and illustrated with photographs and photomicrographs. Stages 9 to 12 (the somitic period, about 20 to 26 days) and stages 13 to 23 (the postsomitic period, 4 to 8 post-ovulatory weeks) are summarized with reference to both external and internal development, and illustrated with photographs of the external appearances. In addition to (A) certain references cited in the introduction and in the text, the bibliography includes : (B) an annotated list of general works on staged human embryos, (C) an annotated list of selected examples of stages 1 to 15, and (D) an annotated list of references to information concerning staged embryos arranged according to the various systems of the body.

Bibliographies as Topic↗
PubMed1981

[Sequential innervation of the intestinal loop in the human embryo].

The study of 20 excellent human embryos of the Carnegie Collection has allowed the innervation of the intestinal loop to be traced during the embryonic period proper. It follows the centrifugal sequence observed throughout in the development of the peripheral nervous system. At stage 14 or 15, the rami comunicantes and the primordium of the latero-vertebral sympathetic trunk appear. Splanchnic fibres are noted at stage 16, and at stage 17 the superior mesenteric plexus appears. Then nerve bundles progress along the superior mesenteric artery according to the following sequence: 1) Nerves fibres face the mesentery (stage 19), 2) They penetrate into the mesentery (stage 20), 3) Nerve buds move forwards and nerve fibres begin to be anchored to the muscular layer of the proximal portion of the loop, duodenum and colon (stage 21), 4) Nerve fibres are anchored to the muscular layer of the middle part of the intestinal loop (stage 22), 5) The nerve buds reach the distal part of the loop in the umbilical cord.

Gestational Age↗
PubMed1980

Development of olfactory and related structures in staged human embryos.

The staged sequence of development of the olfactory and related structures has been established from the serially sectioned human embryos of the Carnegie collection, from stage 11 to stage 23. The nasal epiblastic thickening appears at stage 11 and the nasal field is well outlined at stage 12. At stage 15, a continuous cellulovascular strand is observed between the nasal groove and the olfactory field. The vomeronasal groove appears at stage 16 (O'Rahilly 1967). During stage 17, the olfactory nerve is organized into two plexuses, lateral and medial, the latter mingled with the terminal-vomeronasal complex. The olfactory bulb begins to appear at stage 18. Stage 19 is characterized by the individualization of the olfactory bulb and nuclei. In addition, the distinction between olfactory structures and terminal and vomeronasal ones begins to be clear. The structure of the olfactory bulb is evident at stage 21. At stage 23, the olfactory strands are well individualized, and olfactory and terminal-vomeronasal fibers are easily distinguishable. The terminal ganglion is rather terminal-vomeronasal with an autonomic terminal contingent and a sensory one attached to the vomeronasal system.

Brain↗
PubMed1980

[Anatomical and embryological aspects of gastric duplications].

Following study of 155 cases of gastric duplications, published up to now and examination of 22 human embryos, the authors discuss classic theories of pathogenesis. They oppose two anatomical forms: tubular forms in 23% of the cases communicating more often with the lumen of the digestive tract, and spherical forms in 77% generally closed. The site of implantation varies. ROWLING'S anatomical criteria are conserved. In embryos, the stomach appears at stage 9 of the embryonic period proper, with the ventral closure of the entoderm. Abnormal lateral longitudinal folding might explain the formation of tubular forms. In two embryos at stage 15, was found a diverticulum of the gastric lumen coated with digestive epithelium, that may explain the later formation spherical forms. No epithelialization or vacuolisation has ever been observed in the gastric wall.

Diverticulum, Stomach↗
PubMed1980

[Development of the dorsal branches of the spinal nerves during the true embryonic period].

A study of the Carnegie collection of human embryos has enabled the author to establish the sequence of events in the development of the dorsal rami of the spinal nerves. As the ventral rami enter the muscle anlagen and the rami communicantes appear at stage 14, it is sometimes possible to note the anlage of a dorsal ramus in the cervical region. At stage 15, the dorsal ramus is well distinguished, but seems to correspond with only its lateral division; indeed, the medial division is evident only in the next stage. At stage 17, the lateral and medial branches exist throughout the entire length of the body. It is only at stage 19, that nerves fibres reach beyond the myotome to the fascia. The next stage does not present any specific feature. At stage 21, however, fibres of the lateral ramus pass beyond the b=fascia and reach the cutaneous vascular layer, whereas fibres of the medial ramus have not yet gained the fascia. At the end of the embryonic period proper (stage 23), the cutaneous fibres of the lateral branch begin to cling to the corium (dermis), but the medial fibres seem merely to pass through the vascular layer without any attachment to the chorion. In summary, it can be stated that: 1) the dorsal rami of the spinal nerves are a little late in comparison with the lateral ones, 2) their lateral branches precede the medial ones, 3) they develop steadily from the depth to the surface, from the cervical to the caudal region, and from the lateral to the medial area of the dorsal skin.

Humans↗
PubMed1979

Neural mechanisms in acupuncture analgesia.

The summary of the nervous levels implicated in analgesia in general helps one to understand that the acupuncture analgesia is not simply a psychological or sociological matter as some said when it first appeared. Its mechanisms are the same as the ones existing in other antalgic therapeutics whether nervous or humoral. Not everything has been explained in the action of acupuncture but acupuncture opens new ways to us in the practical field of controlling pain as well as in the theoretical field of pain, the major problem of all the medicines.

Acupuncture Therapy↗
PubMed1979

[Topographic correlations between the Chinese craniopuncture zones and the cerebral gyri].

Scalp acupuncture being a new chinese therapy in some nervous diseases, the authors establish here topographic relations between its areas and cerebral gyri. These areas are bordered by two main lines: the first is a medial antero-posterior line, the second is a transversal line joining the middle of the brow to the external occipital tuberosity. Brain extraction was possible after congelation. The sulci were injected by three different methods (aluminium wire, red lead and thick barium). Radiological research showed a close relationship between stimulation areas used in scalp acupuncture and neurological knowledge.

Acupuncture Therapy↗
PubMed1978

[Arterial vascularization of the temporomandibular joint].

Anatomical and radiological study of the arteries of the temporo-mandibular joint in 18 foetuses and 4 adults. Branches arising from the superficial temporal artery, from the anterior tympanic artery as well as from the deep posterior temporal artery are found in all cases. Branches arising from four other arteries did not occur regularly: those coming from the deep auricular artery, from the transverse facial artery, from the middle meningeal artery, or sometimes directly from the maxillary artery.

Adult↗
PubMed1976

[Morphological substrate of antalgia and analgesia in the odontostomatological and facial area].

Prior personal work is further extended by a description of the way in which odontostomatological and facial pain is sedated by acupuncture: via peripheral receptors, whose stimulations are intercepted and modulated by various filters lying between the periphery and the cortex: cord (gelatinous substance of Rolando, gate control system), reticular formation and thalamocortical pathways.

Acupuncture Therapy↗
PubMed1976

[Study of right-left asymmetry of the temporal planum in the fetus].

Study on the asymmetry of the planum temporale by means of brain sections of 17 to 39 weeks old fetuses. There is a left predominance in 60 %, a right one in 25 % and symmetry in 15 % of the cases. Our results are similar to those published about adult brain, and cerebral dominance depends on it. Cerebral lateralisation is congenital and not acquired. There is also direct relation between the length of the lateral border of the planum temporale and its area. Such measure could be undertaken in living persons by means of radiological examination.

Cerebral Cortex↗
PubMed1976

[Anastomoses of the terminal branches of the facial nerve and of the trigeminal nerve].

Study of peripheric anastomoses between facial et trijeminal nerves based on 18 dissections of 13 adults and 5 foetuses. Macroscopic study shows that those anastomoses are similar in all cases on any comparable levels of the face. Semi-macroscopic study on foetuses (coloration by means of gold chlorid) and histological study on anastomoses (by means of longitudinal sections) reveal that either motor and sensitive fibres grow together and join the appropriate muscles, or proprioceptor fibres follow the facial nerve in the opposite direction and then leave it, forming recurrent branches. Cutaneous endings of muscles present a great number of Pacinian corpuscules.

Facial Nerve↗