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PubMed1985

Surface markers on lymphocytes leaving pig lymph nodes.

Mesenteric lymph nodes of normal young pigs were perfused in vitro at physiological temperature. Cell-free perfusion medium was pumped into the artery for more than 2.5 hr, and lymphocytes were continuously released into the venous effluent. Recirculating lymphocytes emigrate from pig lymph nodes by entering the blood vasculature directly and not via efferent lymphatics. The presence of lymphocytes in paracortical venular walls after 2 hr of perfusion with new medium suggests that these are the sites of emigration. The rate of emigration of lymphocytes from mesenteric lymph nodes was estimated to be 6 X 10(7)/hr. Study of the lymphocyte populations emerging from the perfused lymph nodes showed that B lymphocytes and E-rosette forming T lymphocytes, but almost no Null lymphocytes, are involved. While the proportion of B lymphocytes remained constant during the perfusion period, E-rosette forming lymphocytes increased significantly. Lymphocyte subpopulations differ profoundly in their capacity to migrate through lymph nodes.

Animals↗

PubMed1976

B and T lymphocytes in man. II. Circulating B and T lymphocytes in cancer patients.

B, T and "Null" lymphocytes from 87 coded peripheral blood samples from 33 normals and 54 nonoperable or progressive cancer patients were determined. The controls have higher mean numbers of circulating lymphocytes than the cancer patients. Radiation-treated cancer patients have lower values than non-irradiated patients. This phenomenon is also seen in the relative and absolute T, but not the B lymphocytes. There was no difference in the B lymphocytes among the different groups of patients. However, the controls have the highest and the radiation-treated cancer patients have the lowest absolute numbers of B lymphocytes. Although cancer patients have higher relative numbers of "Null" cells than the controls, only the difference between the controls and the radiation-treated cancer patients was statistically significant.

Adult↗

PubMed1990

Prostaglandin-mediated inactivation of natural killer cells in the murine decidua.

Previous studies from this laboratory have demonstrated a large influx of null lymphocytes into the murine decidua during pregnancy. We had also shown that trophoblast cells of the murine placenta bear target structures recognized by NK cells. Since NK lineage cells belong to the null category of lymphocytes, we examined whether cells of this lineage appear in the murine decidua, and if so, whether their activity is locally regulated by NK suppressor cells. We further investigated the identity of the suppressor cells as well as their suppressor products. NK lineage cells, irrespective of their activation status, were identified morphologically in radioautographic preparations as the non-T, non-B (null) lymphocytes capable of binding YAC-1 lymphoma targets. NK activity of nucleated cells was measured with a 4-hr 51Cr-release assay against labeled YAC-1 targets. Studies with outbred CD1 mice, and to a smaller extent, inbred CBA mice revealed that the incidence of NK lineage cells remained fairly constant within the decidua throughout pregnancy, but their activity decreased steadily to negligible levels by Day 12-14 of gestation. This was found to result from an inactivation caused by NK-suppressor cells in the decidua. A mixing of Ficoll-Paque-separated nucleated cells of the decidua with normal splenic effector cells (at 1:1 ratio) led to a suppression of their NK activity tested immediately or after a 20-hr coculture. This suppression was MHC unrestricted. Suppressor cells were identified both in plastic nonadherent fraction highly enriched for typical decidual cells as well as in the plastic adherent fraction containing decidual cells and macrophages. Addition of indomethacin (10(-5) M), an inhibitor of prostaglandin synthesis, or anti PGE2 antibody, revived the NK activity in the mixed population, as well as in the decidua, suggesting a PGE2-mediated suppression. High levels of PGE2 were detectable in decidual cell supernatants with a sensitive radioimmunoassay. Addition of pure PGE2 (10(-7)-10(-6) M) but not PGF2 alpha (10(-6) M) during the NK assay or to the effector cells for a 20-hr period prior to the assay led to an inhibition of NK activity. These results reveal that NK cells appearing in the murine decidua are progressively inactivated by PGE2 produced by decidual cells and decidual macrophages.

Animals↗

PubMed1975

Human antibody-dependent cellular cytotoxicity. Isolation and identification of a subpopulation of peripheral blood lymphocytes which kill antibody-coated autologous target cells.

Antibody-dependent cellular cytotoxicity (ADCC), has been shown to be independent in vitro of thymus-derived lymphocytes, but the precise nature of the effector lymphocyte has not been fully clarified. To further study the identity of the ADCC effector cell type(s), peripheral blood leukocytes were purified by Ficoll-Hypaque density centrifugation and fractionated into surface immunoglobulin-positive [Ig(+)] and surface immunoglobulin-negative [Ig(-)] populations by chromatographic separation on Sephadex G-200 anti-human immunoglobulin columns. After column fractionations, the ADCC effector activity against antibody-coated autologous lymphocytes was predominantly and consistently found in the Ig(-) fraction. This latter population was then further fractionated, by rosetting techniques, into two subpopulations, The first was depleted by lymphocytes with surface receptors for sheep red blood cells [E(+)]and the second was depleted of lymphocytes with receptors for sheep red blood cell-antibody-complement [EAC-(+)]. Analysis of these populations showed that ADCC effector activity was predominantly a property of the Ig(-) lmyphocytes which are E(-) but EAC(+). These lymphocytes have been referred to as "null lymphocytes" and probably represent a subset of bone marrow-derived (B) cells. In addition, variable and low levels of ADCC activity were observed in some Ig(+) populations (B cells). Further purification of the null cell population by filtration over nylon wool columns to reduce the number of contaminating latex ingesting monocytes did not reduce ADCC effector activity. Isolated null cell ADCC effector activity was inhibited by either rabbit anti-human F(ab)2 or normal pooled rabbit gamma globulin, but not by rabbit F(ab)2 anti-human F)ab)2 or media. This supports the contention previously suggested in studies using unfractionated lymphocyte populations that the ADCC effector cell recognizes the Fc portion of the antibody molecule. The variable and low level of activity noted in the Ig(+) populations is unexplained but possibly due to a variable population of null cell-derived Ig(+) lymphocytes within the whole Ig(+) population. In conclusion, these experiments demonstrate that, in vitro, the major ADCC effector activity of circulating human peripheral blood lymphocytes resides in the Ig(-), E(-), EAC-(+) subpopulation termed "null cells." Since it has been noted that in certain disease states, such as immunodeficiency syndromes, autoimmune disorders, and neoplasms, the percentage of this population of lymphocytes in the peripheral blood is elevated, it is speculated that these cells, perhaps through their ADCC function, may play an important pathophysiologic role in these diseases.

Antigen-Antibody Reactions↗

PubMed1985

Characterization of hematogenous cellular constituents of the murine decidua: a surface marker study.

Decidual tissue, which includes typical (stromal type) decidual cells as well as infiltrating leukocytes, appears to play a local immunoregulatory role in the maintenance of pregnancy in nature. The present study evaluated the contribution of numerous leukocyte subsets characterized on the basis of morphology combined with cell surface markers to the development of murine decidua during syngeneic (CBA female X CBA male) and allogeneic (CBA female X C57BL/6 male) pregnancy. Collagenase dispersed decidua were subjected to total and differential counts and cell surface labeling for a radioautographic identification of various markers: S-IgM on B cells, Thy-1 on T cells, neither marker on null lymphocytes, Lyt- (1 or 2 or 1,2) antigens on T cell subsets, Mac-1 and I-A on macrophages, using 125I-labeled monoclonal antibodies or a sandwich labeling with 125I-protein A. The total cellularity of decidua basalis showed a biphasic rise in both pregnancies, with peaks on day 11 and days 15 and 16, but the allopregnant decidua showed a higher accumulation of all cell types indicating that an allogeneic conceptus causes an augmented deciduogenesis. The number of decidual cells, the most frequent cell class, rose to a peak on day 11 followed by a decline possibly due to cell death. The number of lymphocytes, the next frequent cell class, showed a parallel pattern initially, followed by a sharp secondary rise on day 16. This rise may be due to a withdrawal of progesterone, an antiinflammatory hormone. Null cells predominated amongst decidual lymphocytes (45-80%), as well as in the progestational endometrium (53%), indicating a hormonal control of their accumulation. The frequency of B cells was low (10-13%) and T cells (25-45%) comparable to that in the blood, with Lyt-1 only class being the most common T cell subset. Allopregnant decidua also showed a late rise in the total number of Lyt-2 only cells which may have a suppressor function. Macrophages, the next common leukocyte class, all expressed Mac-1. Their number rose to a plateau by day 12, but at a higher level in allopregnancy. I-A (needed for antigen presentation) was expressed by an increasing proportion (5-60%) of macrophages with advancing gestation. These findings provide a basis for further functional studies.

Animals↗

PubMed1992

Changes in the populations of null, NK1.1+, and Thy1lo lymphocytes in the bone marrow of tumor-bearing mice: effect of indomethacin treatment.

Mouse bone marrow produces many "null" lymphocytes which lack B and T lineage markers (B220-Thy1-). A subset of these cells expresses the natural killer (NK) cell marker, NK1.1. In addition, some rapidly renewed bone marrow lymphocytes express low intensities of Thy1 (Thy1lo). In view of their possible implication in tumor-host interactions these various cell populations have now been examined in mice injected with either the nonmetastatic Ehrlich ascites (EA) tumor or the Lewis lung carcinoma (LLc), a highly metastatic solid tumor. In each case, the number of null lymphocytes, as defined by a lack of radioautographic labeling of either B220 glycoprotein or Thy1, increased markedly in both the bone marrow and spleen. Treatment with the prostaglandin inhibitor, indomethacin, enhanced the increase in null cells in the bone marrow and spleen of LLc-bearing mice. The number of null small lymphocytes expressing NK1.1, as detected by combined radioautographic and immunoperoxidase techniques, increased almost 30-fold in LLc-bearing mice. The number of Thy1lo small lymphocytes increased in parallel with null cells during EA tumor growth. The findings accord with the hypothesis that the null lymphocyte population produced in mouse bone marrow includes newly formed NK lineage cells which sequentially express NK1.1 and Thy1lo. The present work demonstrates that the populations of null, NK1.1+, and Thy1lo lymphocytes in mouse bone marrow expand rapidly during the early growth of transplanted tumors, the initial increase in null lymphocytes apparently being curtailed by prostaglandin production. The results suggest that the production of null lymphocytes in mouse bone marrow is responsive to tumor development, possibly providing cells to be involved in tumor-host interactions.

Animals↗

PubMed1979

The lymphocyte response to influenza in humans.

Enumeration of total lymphocytes and T, B, and null lymphocyte subpopulations in peripheral blood of normal volunteers was performed before and at intervals after inoculation with type A influenza virus. Volunteers who subsequently developed infection and illness had larger T-cell counts before inoculation and exhibited an increased number of B lymphocytes during the incubation period and a decrease in all subpopulations during illness, although the greatest decrease occurred in T cells. A decrease in B-cell counts occurred on day 3 in volunteers who exhibited infection, but no illness and no changes occurred in uninfected, well volunteers. Values had returned to baseline by day 21 after inoculation. Thus, the lymphopenia that accompanies influenza involves all subpopulations, but is primarily a decrease in T cells; in addition, differences in T-cell and B-cell populations before and during the incubation period may identify persons who will subsequently develop febrile influenza.

Adult↗

PubMed1982

Increased double marker lymphocytes in systemic lupus erythematosus and lymphoproliferative disorders.

In this study we were able to confirm the presence of double marker lymphocytes (D cells) in human peripheral blood from normal subjects in addition to patients with SLE and malignant lymphoma. Quantitation of D cells and Null lymphocytes (N cells) in peripheral blood was not feasible via conventional rosette methods. The present combination method, using two indicators, neuraminidase treated sheep red blood cells (nSRBC) and Immunobeads, allows for simultaneous demonstration of T, B, N and D lymphocytes in a simple reproducible manner. The mean percentage of the D cell counts with this method was 1.8% of total lymphocytes from normal donors, 7.0% in patients with SLE, and 29.2% in patients with malignant lymphoma. The simultaneous quantitation of T, B and N cells in these blood samples was compared to the results of conventional methods, i.e. E rosettes for T cells and EAC rosettes for B cells, which gave similar results. This combination method for simultaneous enumeration of human peripheral lymphocyte subpopulations may offer significant advances in the study and diagnosis of various clinical entities.

Adolescent↗

PubMed1981

Canine transmissible venereal sarcoma: distribution of T and B lymphocytes in blood, draining lymph nodes and tumours at different stages of growth.

The levels of T, B and null lymphocytes in the peripheral blood, draining lymph nodes, and tumour masses at different growth stages in dogs transplanted with canine transmissible venereal sarcoma (CTVS) were determined by immunofluorescence techniques. The tumours were classified at excision into "progressor", "steady state", and "regressor" stages of growth. The percentage of B cells in the lymphocytes infiltrating into the progressively growing tumours (n = 10, 37.3 +/- 7.4%) was significantly higher (P less than 0.025) than that in regressing tumours (n = 21, 26.1 +/- 1.9%). In contrast, the percentage of T cells in the lymphocytes infiltrating into the regressing tumours (n = 21, 61.2 +/- 2.6%) was significantly higher (P less than 0.005) than that in the progressively growing tumours (n = 10, 34.0 +/- 5.1%). The tumours at the steady-state growth stage (n = 9) had 50.8 +/- 5.7% infiltrating T-cells, which was significantly higher (P less than 0.005) than the progressors and lower (P less than 0.005) than the regressors. The percentage of null cells of progressors (n = 10, 26.0 +/- 6.9%) was significantly (P less than 0.025) higher than in regressors (n = 21, 13.5 +/- 2.9%). The draining lymph nodes of progressor dogs (n = 5) had significantly fewer (P less than 0.025) B cells (8.2 +/- 2.3%) than in normal (n = 5, 16.1 +/- 3.1%), regressors (n = 12, 19.1 +/- 1.7%) and steady-state dogs (n = 5, 15.8 +/- 2.6%). Although there was slight lymphopenia and fluctuation of null cells, no significant differences in T- and B-lymphocyte levels were noted in the peripheral blood of the tumour dogs (n = 44) studied.

Animals↗

PubMed1982

Immunological types of lymphoproliferative disorders in a cohort: a 4-year study.

Immunological testing of malignant cells and serum from most cases of lymphoproliferative disorders (LPD) allows the cell type to be characterised as of B, T or "null" lymphocyte origin. Regional differences in the incidence of neoplasms of these types have been reported. Furthermore, most published series have drawn cases from referral institutions rather than the general population. In order to determine the true incidence of a cohort we surveyed an entire population, that of Tasmania, an island state of Australia with a population of 410,000, during a defined period, the years 1977-1980 inclusive, for the occurrence of LPD. A total of 248 cases was discovered, made up of 133 cases of non-Hodgkin's lymphoma (NHL), 30 of chronic lymphocytic leukaemia (CLL), 18 of acute lymphoblastic leukaemia (ALL), 54 of multiple myeloma (MM), eight of macroglobulinaemia (MGA) and five others. We identified B lymphocytes by the presence of surface membrane immunoglobulin (Smlg) and their ability to rosette with mouse red blood cells, and T lymphocytes by their ability to rosette with sheep red blood cells. Laboratory testing was performed in 201 (81%) of the cases and characterisation of the cell of origin as of B, T or "null" type was successful in 158 (64%). Of these 158, 136 (86%) were B, 4 (3%) T, and 18 (11%) "null". On B cell subtyping by heavy and light chain lg analysis the Tasmanian series, compared with other reports, had an apparent paucity of B-CLL, MM and MGA of lambda subtype (57 k to 12 lambda, k:lambda ratio 4.8:1) and an unusual incidence of B-CLL with the double lg heavy chain combination M+G. Surveys of this type may help to point to environmental or other factors important in the aetiology of LPD.

Australia↗

PubMed1976

Alteration of lymphocyte subpopulations with cytomegalovirus infection in infancy.

The distribution of immunoglobulin bearing (Ig+), T, and null lymphocyte subpopulations and the lymphocyte response to phytohaemagglutinin (PHA) and pokeweed mitogen (PWM) were determined in three infants with cytomegalovirus (CMV) infection. These infants had significantly decreased percentages of T cells (13%, 29% and 40%) compared to age-matched controls (61 +/- 2%). Compensatory increases in the percentages of Ig+ and null cells occurred. Decreased lymphocyte reactivity to PHA and PWM occurred in two patients. Purified T cells from these patients had normal reactivity indicating a disproportion of T cells in the peripheral blood. These abnormalities may result from CMV infection of lymphocytes and could be responsible for prolonged CMV viruria.

Cytomegalovirus Infections↗

PubMed1988

Subpopulations of T lymphocytes emigrating in venous blood draining pig thymus labelled in vivo with fluorochrome.

The emigration of labelled thymus cells in the pig was studied directly in blood draining the large right distal cervical lobe of the thymus after controlled labelling with FITC delivered through cannulated branches of a main thymic artery and vein by temporary ex vivo perfusion at body temperature. Roughly 1% of thymic cells emigrated per day. Unlike most thymocytes, which are small, the size spectrum of thymic emigrants is slightly larger than that of typical blood lymphocytes. Surface-marker studies show that the surface phenotypes of the emigrants differ from both typical thymus and peripheral blood lymphocytes. Although the emigrants resemble thymocytes in the high proportion of strong rosettes formed with sheep red blood cells (RBC), they rosette poorly with pig red cells, particularly in the unenhanced saline test, in this respect behaving like blood lymphocytes. The peripheral T-cell subset bearing a Fc receptor is almost absent in thymus, but is well represented among the emigrants which thus resemble corticosteroid-resistant thymocytes in the pig. The large population of thymus-dependent Null lymphocytes in young pig blood apparently arise in thymus since they constitute 1/3 of emigrants, although only forming less than 10% of thymus cells. This emigration of thymic cells is discussed in relation to its implications for the turnover of known functional peripheral T-cell populations.

Animals↗

PubMed1982

Heterogeneity of human T4+ inducer T cells defined by a monoclonal antibody that delineates two functional subpopulations.

A monoclonal antibody termed anti-T4 that detected approximately 60% of peripheral blood T lymphocytes was shown to define the human inducer population. In the present study, we characterized three additional monoclonal antibodies, anti-T4A, anti-T4B, and anti-TQ1, that were reactive with a similar percentage of T lymphocytes. Anti-T4A, anti-T4B, and anti-T4 delineated identical cell populations, while those defined by anti-TQ1 differed in several respects: 1) Anti-TQ1 stained a minority (less than 7%) of thymocytes, whereas the other antibodies stained a majority (80%); 2) Anti-TQ1 reacted with 70 to 85% of T4+ lymphocytes, but also stained 50% of T cells within the T4- (T8+) cytotoxic/suppressor subset; 3) The antigen defined by anti-TQ1 was not restricted in its expression to T cells; it defined a fraction of normal B and null lymphocytes as well as non-T cell lines. In vitro studies indicated that the subpopulations of T4+ T lymphocytes delineated by anti-TQ1 were functionally distinct. Although T4+TQ1+ and T4+TQ1- T cells proliferated in an equal fashion to soluble antigen and alloantigen, only the T4+TQ1+ subset was responsible for maximal proliferation in autologous MLR. This T4+TQ1+ subset contained a population of lymphocytes reactive with the previously defined JRA autoantibody. In contrast, the T4+TQ1-, but not the T4+TQ1+, subset provided the majority of T cell help for B cell immunoglobulin production in a pokeweed-driven system. We conclude that the subpopulation of T4+ inducer cells responsible for maximal helper activity in T-B interactions is restricted to a minor subpopulation of T4+ lymphocytes.

Adolescent↗

PubMed1991

Population dynamics of "null" and Thy1lo lymphocytes in mouse bone marrow: genesis of cells with natural killer cell lineage characteristics.

The population dynamics of "null" small lymphocytes lacking B and T lineage markers in mouse bone marrow have been examined using a combination of immunolabeling and hydroxyurea (HU) deletion techniques. The binding of the B lineage-associated mAb, 14.8, and anti-Thy1.2 to bone marrow cells has been detected radioautographically. Null cells lacking 14.8 and Thy1.2 determinants (14.8- Thy1-) formed a substantial subset (12-14%) of bone marrow small lymphocytes, representing 0.5 x 10(6) cells per femur (2-3% of nucleated cells). HU treatment revealed an exceptionally rapid turnover of the null small lymphocyte population (T1/2, 7.5 hr) compared with 14.8+ cells (T1/2, 20.5 hr) and Thy1+ cells (T1/2, 53 hr). Small lymphocytes bearing low intensities of Thy1 (Thy1lo) were also rapidly renewed (T1/2, 28 hr) whereas those with high intensities of Thy1 (Thy1hi) were renewed only slowly (T1/2, 123 hr). During ontogeny, null small lymphocytes first appeared in the fetal liver by Day 11 and the fetal spleen by Day 16, but increased rapidly in the bone marrow in early postnatal life. Double immunolabeling techniques demonstrated that 10% of null small lymphocytes in the bone marrow expressed NK1.1 antigen, while larger proportions bound to tumor (YAC.1) cells in vitro and displayed Fc receptors. The NK1.1-bearing fraction of null small lymphocytes in bone marrow was depleted by HU treatment only after an initial delay. NK1.1 was also expressed on subsets of Thy1lo cells and Thy1hi cells. The results have revealed the continuous production in mouse bone marrow of null and Thy1lo small lymphocytes, totaling 1-3 x 10(7) cells/day and 1.2 x 10(6) cells/day, respectively. The findings suggest that the large-scale production of null lymphocytes in mouse bone marrow includes the genesis of NK lineage cells which express NK1.1 and Thy1lo during a period of terminal maturation.

Age Factors↗

PubMed1982

[Immunotherapy of malignant tumors with subpopulations of T lymphocytes].

During tumor growth specific suppressor cells and non-specific macrophages increase, while helper T cells decrease, preventing the production of an adequate immunological reaction. This immunosuppression can be subdued transferring specific helper cells, that contribute to the production of effector cytotoxic lymphocytes, cooperate with B lymphocytes to produce anti-tumor antibodies, and induce the accumulation of macrophages, lymphocytes, null cells and granulocytes in the tumor zone. The experiments have been done with sarcomas induced in the BN rat by Moloney virus and methylcholanthrene, respectively. It is possible that the experimental model may be applied to human tumors.

Animals↗

PubMed1981

Pseudo-lymphocyte monocytes--the memory cells responsible for the development of epitheloid cell granulomata. A new hypothesis.

This hypothesis proposes that, in individuals with an appropriate genetic background, monocyte memory cells are formed when histiocytes and macrophages undergo mitosis following first exposure to a granulomagenic agent and circulate as pseudolymphocytes in the lymphocyte null cell population. It is proposed that epithelioid cell granulomata develop from a clone of cells formed from monocyte memory cells on the second or subsequent exposure to the same granulomagenic agent. Epithelioid cell granuloma formation is therefore not dependent on T-cell function, although the cellular nature of the granuloma appears to depend upon the nature of a concomitant but independent classical immune response. The implications of pseudolymphocyte memory cells on the development of granulomata of both exogenous and endogenous origin, and the relationships between lymphocytes and cells of the monocytic phagocyte series are discussed.

Animals↗

PubMed1975

Relationships between H-2 Region and surface characteristics of mouse spleen cells.

The purpose of this investigation was to study whether allelic variations at the H-2 region which induce differences in the peptide composition of some glycoproteins of cell surface, also induce variations in electrical charges at the cell membrane. The surface charge was assessed by the electrophoretic mobility of the cell. Tests with different congenic strains were undertaken on spleen cells which were assumed to contain two major lymphocyte populations with different surface charge. The data show that the mean electrophoretic mobility of the low mobility lymphocytes was independent of the strain. By contrast, some H-2 haplotypes give 8% difference in surface charge of high mobility lymphocytes. These results suggest that the H-2 region plays a role in the regulation of ionized groups of cell surface in some but not all populations of spleen lymphocytes. The high and low mobility lymphocyte populations are assumed to represent T and B lymphocytes, respectively. The proportions of T lymphocytes obtained with electrophoretic marker were higher than those observed in other strains with currently available markers. It is suggested that the high mobility population contains T and "null" lymphocytes. Moreover, the data show that the H-2 region controls the relative proportions of T (or T and "null") and B lymphocytes, the H-2s specificity inducing a B/T ratio different from that induced by other specificities.

Animals↗

PubMed1991

[Immunological study of inefficiency schizophrenics with deficiency syndrome treated with xin shen ling].

This paper reports 30 cases of chronic schizophrenics with deficiency syndrome who had chronically taken many sorts of neuroleptic medications and other therapies to be ineffective. The 7 immunological functioning markers were detected: phytohemagglutinin (PHA) intradermic test; circulating immune complex (CIC); T, B lymphocytes, null (N), double (D) cell; and large granular lymphocyte (LGL) and to be compared with a control group of 30 healthy individual. The result showed that 6 immunological markers (PHA, CIC and T, B, N and D cell) were significantly different as compared with the control group (P less than 0.01). In order to regulate proportion and function to immune cell, the 30 patients were given to take immuno-modulating herbs (xin shen ling, XSL) during 6 weeks, while their 7 immunological markers were detected before treatment (BT) and after treatment (AT). The results showed that 5 immunological markers (PHA, CIC, T, N, and D cell) of BT were significantly different as compared with that of AT (P less than 0.01). However, the 5 immunological markers (PHA, CIC, and T, N and D cell) of AT were not significantly different as compared with that of the control group (P less than 0.05). The brief psychosis rating scale (BPRS) and nurses observation scale for inpatient evaluation (NOSIE) were used as evaluating changes of clinical symptoms BT and AT. The results showed that BPRS and NOSIE of BT were significantly different as compared with that of AT (P less than 0.05). The clinical efficacious rate was 67%. We have followed up the results for near 3 years which had a relapse of 5 cases of 20 cases be discharged. It seemed that XSL may be one of the preventive relapse agent for these patients.

Adjuvants, Immunologic↗